Question

give a rough estimate by rounding off to nearest hundred and also closer estimate by rounding off to nearest tens
(a)439+334+4314
(b)108-734-47599​

Answer 1

Answer:

Rounding off 439 to the nearest hundreds, we get 400

Rounding off 334 to the nearest hundreds, we get 300

And, rounding off 4,317 to the nearest hundreds, we get 4,300

Therefore, 400 + 300 + 4,300 = 5,000

It means that answer is equal to 5,000 when we round off different terms to the nearest hundreds.

Rounding off 1,08,734 to the nearest hundreds, we get 1,08,700

And rounding off 47,599 to the nearest hundreds, we get 47,600

Therefore, 1,08,700-47,600=61,100

It means that answer is equal to 61,100 when we round off the terms to the nearest hundreds.

Rounding off 1,08,734 to the nearest tens, we get 1,08,730

And rounding off 47,599 to the nearest tens, we get 47,600

Therefore, 1,08,730-47,600=61,130

It means that answer is equal to 61,130 when we round off terms to the nearest tens.